How is tilde used in commands?

The tilde ~ can be used in commands to represent the current user's home directory. Here are a few examples:

1. Navigating to the home directory:

   cd ~

2. Accessing a file in the home directory:

   cat ~/file.txt

3. Creating a directory in the home directory:

   mkdir ~/new_directory

4. Copying a file to the home directory:

   cp /path/to/file.txt ~/

In these examples, ~ acts as a shortcut to avoid typing the full path to the home directory.